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Metal Roofing

  • Bending V-Crimped Valley Flashing

    Keep runoff under control where roofs of different pitches intersect.

     
  • Resources

    Estimating basics, laminate countertop primer, roofing material spec book

     
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    Reroofing over Asphalt Shingles

    Reroofing over old asphalt shingles is cheaper than a complete tear-off, but to look good and last long, the new shingles have to lie flat. A veteran roofer explains how to use special flashing, filler strips, and careful layout for a perfect job every time.

     
  • Products

    Tools for cutting steel studs, specialized wire stripper, filter fabric that slows root growth, new steel shingle, safety harness for women, fabric form for concrete footings

     
  • Q&A: Attaching Metal Roofing

    Q: When installing metal roof panels, should you screw or nail, and should the fasteners go through the flats or the ribs of the roof profile?

     
  • Q&A: Metal Roof Over Asphalt?

    Q: I am bidding a job where the owner wants to install a new metal roof over a double layer of asphalt shingles. The roof has solid lumber rafters and plywood sheathing. Should I install 1x4 horizontal purlins over the asphalt and attach the metal roof to those? Should the purlins be...

     
  • Alternative Roofing Materials

    Plastic, metal and fiber-cement shingles and panels make for durable, fire-resistant roofs — without sacrificing good looks.

     
  • Letters

    Venting cedar shingle roofs, aluminum nails for wood roofing, stair-building details

     
  • Products

    Fluorescent down light, extra-wide corner bead, retrofit scald protection

     
  • For What It's Worth

    Shallow seismic anchor, structural metal roof panels, wrinkleproof roofing felt

     
  • Eight Penny News

    Lessons from Hurricane Erin, radiant barrier study, tax depreciation basics

     
  • Roof Tile Fasteners for High-Wind Regions

    When it comes to securing roof tiles, minimum code recommendations may not be good enough. A seasoned roofing contractor discusses the right and wrong ways to install roof tiles in high-wind and seismically active areas.

     
  • Skylight Options and Accessories

    The difference between one skylight and another is in the details. Here’s an overview of add-ons for roof windows.

     
  • For What It's Worth

    Thermostatic crawlspace vent, new fiberglass-mat roofing paper, fold-up hearing protectors

     
  • Flashing the Tough Spots

    If you’re still using roll aluminum for all of your flashing, you may be inviting leaks and premature failure. Here’s an overview of the materials, techniques, and details that will make flashing last the life of the structure.

     
  • For What It's Worth

    New trimmable floor truss, backsplash clip, retrofit flashing for vent pipes

     
  • For What It's Worth

    Fiberglass bulkhead, job-site camera, ceramic-coated roof tiles

     
  • Leakproof Details for Shallow Roofs

    Conventional steep-slope roofing materials can be made watertight even on low slopes. Here are some details and techniques that work.

     
  • Letters

     
  • Letters

     
 
 
 
JLC Field Guide to Decking